1144404631 has 8 divisors (see below), whose sum is σ = 1161896400. Its totient is φ = 1127016000.

The previous prime is 1144404619. The next prime is 1144404643. The reversal of 1144404631 is 1364044411.

It is an interprime number because it is at equal distance from previous prime (1144404619) and next prime (1144404643).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144404631 - 2¹³ = 1144396439 is a prime.

It is a super-2 number, since 2×1144404631² = 2619323918908492322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144404631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144404601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3276 + ... + 47953.

It is an arithmetic number, because the mean of its divisors is an integer number (145237050).

Almost surely, 2^1144404631 is an apocalyptic number.

1144404631 is a deficient number, since it is larger than the sum of its proper divisors (17491769).

1144404631 is an equidigital number, since it uses as much as digits as its factorization.

1144404631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51569.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1144404631 is about 33829.0501049024. The cubic root of 1144404631 is about 1045.9875986694.

The spelling of 1144404631 in words is "one billion, one hundred forty-four million, four hundred four thousand, six hundred thirty-one".